<template>
  <div class="person">
    <h2>{{ name }}</h2>
    <h2>{{ age }}</h2>
    <button @click="changeName">修改名称</button>
    <button @click="changeAge">修改年龄</button>
    <button @click="showTel">展示联系方式</button>
  </div>
</template>

<script lang="ts">
export default {
  name: 'Person',
  setup() {
    //数据
    let name = '张三'
    let age = 18
    let tel = '18188888888'

    //方法
    function changeName() {
      name = '李四'
      console.log(name)
    }

    function changeAge() {
      age += 1
      console.log(age)
    }

    function showTel() {
      alert(tel)
    }

    return { name, age, tel, changeName, changeAge, showTel }

    // return () => '哈哈'
  }
}

// methods: {
//   changeName() {
//     this.name = '李四'
//   },
//   changeAge() {
//     this.age += 1
//   },
//     alert(this.tel)
//   }
// },



</script>
<style scoped>
.person {
  background-color: skyblue;
  box-shadow: 0 0 10px;
  border-radius: 10px;
  padding: 20px;
}

button {
  margin: 0 5px;
}
</style>